(Quick note while Holly's tf is now starting and normaly worshipping a clown girls feet would cause that person to tf as well since Holly isn't fully transformed yet lets have it so that clown girls and only turn others when they are fully transformed. That way we have Holly fully transform first but then can imediately go into Nicks tf tg.)
Holly begins to feel hot and bothered from recounting her clown girl encounter and unbeknownst to her the first stage of her transformation are begining. Though for now its just making her mkre horny then giving any physical changes yet...though those will be starting soon. "Oh Nick sweetie I cant take it anymore! I want you to worship my feet just like I did to that clown girl!" Your step mother says as she quickly removes her shoes and her socks leaving her barefoot. Of course you where already aroused from the story of what your step mother and that clown girl did but now you also have the chance to do what you have fantasized about for so long. And so you get out of your chair and drop down to your knees on the floor right next to her feet submissivly. You always where submissive and that wont be changing now. "Oh yes Mommy Id love to worship your feet!" You say with a blush. Holly smiles "Mommy huh? I like the sound if that! Come worship Mommy's feet then baby!" Your step mother says as she shoves her big, meaty and wrinkly soles into your face. Causing you to moan in pleasure as you begin licking and kissing her wrinkly soles. But as you do you can see and also feel her feet growing bigger and bigger! They where a (US) size 12 but now they are atleast a size 20...and are still getting bigger!